I think an electric shock would go a long way. Years back I tried to make a phone case that would shock me at random while using it. The idea was to replace th

I think an electric shock would go a long way. Years back I tried to make a phone case that would shock me at random while using it. The idea was to replace the dopamine hit you get from checking your phone with a twinge of anxiety and dread. I never finished the project. Turns out generating high voltages requires tall inductors, which generally make a phone case unacceptably thick.